A cat outline done in just black would look wonderful yet simple. The size could also be adjusted to fit smaller parts of the body. The outline does not necessarily need to be done in black but can be done in other single colour tones like pink or blue.
A moon with a sun, three points and some spikes, which remain the sun and in my opinion a lion. I believe it would look nice on my wrist. Personal signification for the moon encircling the sun, so as for the spikes.